Owners manual

DGS-1510 Series Gigabit Ethernet SmartPro Switch CLI Reference Guide
190
Use this command to display the content of the DHCP server screen log buffer. The buffer keeps the
information of server messages that violates the screening. The number of occurrences of the same
violation and the latest time of the occurrence are tracked.
Example
This example shows how to display the DHCP server screen log buffer.
Switch# show ip dhcp server-screen log
Total log buffer size: 64
VLAN Server IP Client MAC Occurrence
------ --------------- ----------------- ----------------------
100 10.20.1.1 00-20-30-40-50-60 06:30:37, 2013-09-10
100 10.58.2.30 10-22-33-44-50-60 06:31:42, 2013-09-10
Total Entries: 2
Switch#
17-23 snmp-server enable traps dhcp-server-screen
This command is used to enable sending SNMP notifications for the forge DHCP Server attacking. Use
the no form of the command to disable sending SNMP notifications.
snmp-server enable traps dhcp-server-screen
no snmp-server enable traps dhcp-server-screen
Parameters
None.
Default
By default, this option is disabled.
Command Mode
Global Configuration Mode.
Command Default Level
Level: 12.
Usage Guideline
When DHCP Server Screen is enabled and the Switch receives the forge DHCP Server packet, the
Switch will log the event if any attacking packet is received. You can use this command to enable or
disable the sending of the SNMP notifications for such events.
Example
This example shows how start sending sending trap for DHCP Server Screen.
Switch# configure terminal
Switch(config)# snmp-server enable traps dhcp-server-screen
Switch(config)#